Overview

Building HTTP Load Balancers in Go and Python: Step-by-Step Practical Guide to Health Checks, Advanced Algorithms, and ZeroDowntime Deployments What happens when your application suddenly takes off, and one server is no longer enough? How do you keep users happy when traffic spikes, backends fail, or updates risk downtime? These are the real challenges every developer faces when moving from ""it works"" to ""it scales."" Building HTTP Load Balancers in Go and Python: Step-by-Step Practical Guide to Health Checks, Advanced Algorithms, and Zero-Downtime Deployments gives you the practical tools to meet those challenges head-on. Instead of relying on opaque, prepackaged solutions, you'll build your own load balancers from the ground up-understanding every line of code and every design decision along the way. This hands-on guide walks you through implementing reverse proxies, health checks, and modern load balancing algorithms such as round-robin, least-connections, weighted distribution, and sticky sessions. You'll learn how to handle backend failures gracefully, perform connection draining for safe deployments, and secure your traffic with TLS termination-all with runnable, production-ready examples in both Go and Python. By the end of this book, you won't just know what load balancing is-you'll be able to build and maintain your own high-performance, fault-tolerant systems that keep applications responsive under real-world pressure. You will learn how to: Build a working HTTP load balancer in Go and Python step by step. Implement health checks and automated recovery to maintain resilience. Apply advanced algorithms to optimize traffic distribution. Manage zero-downtime deployments with connection draining and graceful shutdown. Secure and harden your load balancer with TLS and best practices. Benchmark, monitor, and tune for peak performance in production. Whether you're a backend engineer, a DevOps practitioner, or a curious developer eager to understand how internet-scale systems stay online, this book equips you with the clarity and confidence to design, implement, and improve load balancers on your own terms. Scale isn't optional-it's inevitable. Be prepared. Start building the load balancers that keep modern applications fast, reliable, and resilient. Get your copy today and start building systems that thrive under pressure.

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